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| 芯铁主材芯部的增强骨架 | |||
| 泥芯骨 | |||
| 定位筋; 铁芯定位筋 | |||
| 芯骨; 芯铁 | |||
| 型芯铁; 芯杆 | |||
| core bar: 6 phrases in 3 subjects |
| Electric machinery | 4 |
| Hydroelectric power stations | 1 |
| Technology | 1 |
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